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SPFIX's Sortino Ratio of 3.38 indicates that for each unit of downside volatility, it generates 3.38 units of excess return. The ratio is calculated using historical daily returns over the past 12 months (as of Jun 4, 2026).

Unlike other measures, Sortino only focuses on downside volatility (losses), making it particularly useful for investors more concerned about protecting against drawdowns than overall price swings.

SPFIX Sortino Ratio Rank


SPFIX Sortino Ratio Rank: 65.766
Above Average

SPFIX ranks above 65.7% of all investments in our database based on Sortino Ratio over the past 12 months, indicating above-average returns relative to downside risk taken. Securities are ranked from 0 (worst) to 100 (best).

What moves the rank

  • Strong returns with minimal downside volatility → Higher rank
  • Severe or frequent drawdowns → Lower rank
  • Upside volatility → No impact (Sortino doesn't penalize upside swings)

What you can do with this information

  • Above-average downside protection with room for improvement
  • Compare against category peers to gauge relative positioning
  • Monitor for movement toward top tier or decline toward median
  • Consider pairing with top-tier holdings to improve portfolio risk profile

SPFIX Sortino Ratio Market Positioning

The chart shows SPFIX's Sortino Ratio relative to all mutual funds on our platform, with color zones indicating percentile rankings. Higher ratios indicate better downside-adjusted returns.


  • Red zone (bottom 25%): 2.10 or lower
  • Yellow zone (middle 50%): 2.10 to 3.67
  • Green zone (top 25%): 3.67 or higher
  • Top 1%: 9.25+
  • Median: 3.00 — half of all investments score higher

How it compares to other similar mutual funds

The table compares Shelton Capital Management S&P 500 Index Fund's Sortino Ratio with other mutual funds in the S&P 500 category across multiple time periods, showing how SPFIX's risk-adjusted performance compares to similar funds.

Data shows 1-, 5-, and 10-year periods, plus each fund's all-time average, as of Jun 4, 2026.


SymbolName1Y Sortino Ratio5Y Sortino Ratio10Y Sortino RatioAll Time Sortino Ratio
SCPIXDWS S&P 500 Index Fund3.44
FXAIXFidelity 500 Index Fund3.42
VIIIXVanguard Institutional Index Fund Institutional Plus Shares3.42
SPINXSEI Institutional Investments Trust S&P 500 Index Fund3.42
PLFIXPrincipal Large Cap S&P 500 Index Fund Institutional3.42
BSPGXiShares S&P 500 Index Fund Class G3.42
VFIAXVanguard 500 Index Fund Admiral Shares3.42
WFSPXiShares S&P 500 Index Fund3.42
DSPIXBNY Mellon Institutional S&P 500 Stock Index Fund3.41
SWPPXSchwab S&P 500 Index Fund3.41
SPFIXShelton Capital Management S&P 500 Index Fund3.38

S&P 500 Index

How to choose period

Historical Sortino Ratio

The chart shows SPFIX's rolling Sortino ratio over time compared to your chosen benchmark. Rising trends indicate improving returns relative to downside risk, while declining trends may signal deteriorating risk-adjusted performance or increased volatility during market stress. Use multiple timeframes to distinguish short-term fluctuations from long-term patterns.

Identify market cycles by observing when SPFIX consistently outperforms (line above benchmark), underperforms (below benchmark), or aligns with the benchmark.


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